Finding the Fourth Proportional to 42,016.92, 63,034.49 and 12,436.83

Step by Step Solution

1. Step 1: Write the proportion equation
   42,016.92 : 63,034.49 = 12,436.83 : x
2. Step 2: Convert to fraction form
   42,016.92/63,034.49 = 12,436.83/x
3. Step 3: Cross multiply
   42,016.92x = 63,034.49 × 12,436.83
4. Step 4: Simplify right side
   42,016.92x = 783,949,236.27
5. Step 5: Solve for x
   x = 783,949,236.27/42,016.92
6. Step 6: Final answer
   x = 18,657.94